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Mechanical strategies to promote vascularization for tissue engineering and regenerative medicine. 促进组织工程和再生医学血管化的机械策略。
IF 6.3 1区 医学
Burns & Trauma Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.1093/burnst/tkae039
Yiran Wang, Meixuan Liu, Wei Zhang, Huan Liu, Fang Jin, Shulei Mao, Chunmao Han, Xingang Wang
{"title":"Mechanical strategies to promote vascularization for tissue engineering and regenerative medicine.","authors":"Yiran Wang, Meixuan Liu, Wei Zhang, Huan Liu, Fang Jin, Shulei Mao, Chunmao Han, Xingang Wang","doi":"10.1093/burnst/tkae039","DOIUrl":"10.1093/burnst/tkae039","url":null,"abstract":"<p><p>Vascularization is a major challenge in the field of tissue engineering and regenerative medicine. Mechanical factors have been demonstrated to play a fundamental role in vasculogenesis and angiogenesis and can affect the architecture of the generated vascular network. Through the regulation of mechanical factors in engineered tissues, various mechanical strategies can be used to optimize the preformed vascular network and promote its rapid integration with host vessels. Optimization of the mechanical properties of scaffolds, including controlling scaffold stiffness, increasing surface roughness and anisotropic structure, and designing interconnected, hierarchical pore structures, is beneficial for the <i>in vitro</i> formation of vascular networks and the ingrowth of host blood vessels. The incorporation of hollow channels into scaffolds promotes the formation of patterned vascular networks. Dynamic stretching and perfusion can facilitate the formation and maturation of preformed vascular networks <i>in vitro</i>. Several indirect mechanical strategies provide sustained mechanical stimulation to engineered tissues <i>in vivo</i>, which further promotes the vascularization of implants within the body. Additionally, stiffness gradients, anisotropic substrates and hollow channels in scaffolds, as well as external cyclic stretch, boundary constraints and dynamic flow culture, can effectively regulate the alignment of vascular networks, thereby promoting better integration of prevascularized engineered tissues with host blood vessels. This review summarizes the influence and contribution of both scaffold-based and external stimulus-based mechanical strategies for vascularization in tissue engineering and elucidates the underlying mechanisms involved.</p>","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"12 ","pages":"tkae039"},"PeriodicalIF":6.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11441985/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beta blockers in critical illness: promising but appropriate subphenotyping is needed. 重症患者使用β受体阻滞剂:前景广阔,但需要适当的亚表型分析。
IF 6.3 1区 医学
Burns & Trauma Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.1093/burnst/tkae060
Luyao Zhang, Lu Ke
{"title":"Beta blockers in critical illness: promising but appropriate subphenotyping is needed.","authors":"Luyao Zhang, Lu Ke","doi":"10.1093/burnst/tkae060","DOIUrl":"10.1093/burnst/tkae060","url":null,"abstract":"","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"12 ","pages":"tkae060"},"PeriodicalIF":6.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11442145/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lymphangiogenesis: novel strategies to promote cutaneous wound healing 淋巴管生成:促进皮肤伤口愈合的新策略
IF 5.3 1区 医学
Burns & Trauma Pub Date : 2024-09-27 DOI: 10.1093/burnst/tkae040
Yang Jian, Yanqi Li, Yanji Zhang, Mingyuan Tang, Mingfu Deng, Chenxiaoxiao Liu, Maolin Cheng, Shune Xiao, Chengliang Deng, Zairong Wei
{"title":"Lymphangiogenesis: novel strategies to promote cutaneous wound healing","authors":"Yang Jian, Yanqi Li, Yanji Zhang, Mingyuan Tang, Mingfu Deng, Chenxiaoxiao Liu, Maolin Cheng, Shune Xiao, Chengliang Deng, Zairong Wei","doi":"10.1093/burnst/tkae040","DOIUrl":"https://doi.org/10.1093/burnst/tkae040","url":null,"abstract":"The cutaneous lymphatic system regulates tissue inflammation, fluid balance and immunological responses. Lymphangiogenesis or lymphatic dysfunction may lead to lymphedema, immune deficiency, chronic inflammation etc. Tissue regeneration and healing depend on angiogenesis and lymphangiogenesis during wound healing. Tissue oedema and chronic inflammation can slow wound healing due to impaired lymphangiogenesis or lymphatic dysfunction. For example, impaired lymphangiogenesis or lymphatic dysfunction has been detected in nonhealing wounds such as diabetic ulcers, venous ulcers and bedsores. This review summarizes the structure and function of the cutaneous lymphatic vessel system and lymphangiogenesis in wounds. Furthermore, we review wound lymphangiogenesis processes and remodelling, especially the influence of the inflammatory phase. Finally, we outline how to control lymphangiogenesis to promote wound healing, assess the possibility of targeting lymphangiogenesis as a novel treatment strategy for chronic wounds and provide an analysis of the possible problems that need to be addressed.","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"33 1","pages":""},"PeriodicalIF":5.3,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Glutamine promotes the proliferation of intestinal stem cells via inhibition of TP53-induced glycolysis and apoptosis regulator promoter methylation in burned mice 谷氨酰胺通过抑制 TP53 诱导的糖酵解和凋亡调节因子启动子甲基化促进烧伤小鼠肠干细胞的增殖
IF 5.3 1区 医学
Burns & Trauma Pub Date : 2024-09-27 DOI: 10.1093/burnst/tkae045
Panyang Zhang, Dan Wu, Xule Zha, Sen Su, Yajuan Zhang, Yan Wei, Lin Xia, Shijun Fan, Xi Peng
{"title":"Glutamine promotes the proliferation of intestinal stem cells via inhibition of TP53-induced glycolysis and apoptosis regulator promoter methylation in burned mice","authors":"Panyang Zhang, Dan Wu, Xule Zha, Sen Su, Yajuan Zhang, Yan Wei, Lin Xia, Shijun Fan, Xi Peng","doi":"10.1093/burnst/tkae045","DOIUrl":"https://doi.org/10.1093/burnst/tkae045","url":null,"abstract":"Background Intestinal stem cells (ISCs) play a pivotal role in maintaining intestinal homeostasis and facilitating the restoration of intestinal mucosal barrier integrity. Glutamine (Gln) is a crucial energy substrate in the intestine, promoting the proliferation of ISCs and mitigating damage to the intestinal mucosal barrier after burn injury. However, the underlying mechanism has not yet been fully elucidated. The objective of this study was to explore the mechanism by which Gln facilitates the proliferation of ISCs. Methods A mouse burn model was established to investigate the impact of Gln on intestinal function. Subsequently, crypts were isolated, and changes in TP53-induced glycolysis and apoptosis regulator (TIGAR) expression were assessed using real-time quantitative polymerase chain reaction (RT-qPCR), western blotting, immunohistochemistry, and immunofluorescence. The effects of TIGAR on cell proliferation were validated through CCK-8, EdU, and clonogenicity assays. Furthermore, the effect of TIGAR on Yes-associated protein (YAP) nuclear translocation and ferroptosis was examined by western blotting and immunofluorescence staining. Finally, dot blot analysis and methylation-specific PCR were performed to evaluate the effect of Gln on TIGAR promoter methylation. Results The mRNA and protein levels of TIGAR decreased after burn injury, and supplementation with Gln increased the expression of TIGAR. TIGAR accelerates the nuclear translocation of YAP, thereby increasing the proliferation of ISCs. Concurrently, TIGAR promotes the synthesis of nicotinamide adenine dinucleotide phosphate (NADPH) and glutathione to suppress ferroptosis in ISCs. Subsequent investigations demonstrated that Gln inhibits TIGAR promoter methylation by increasing the expression of the demethylase ten-eleven translocation. This change increased TIGAR transcription, increased NADPH synthesis, and reduced oxidative stress, thereby facilitating the restoration of intestinal mucosal barrier integrity post-burn injury. Conclusions Our data confirmed the inhibitory effect of Gln on TIGAR promoter methylation, which facilitates YAP translocation into the nucleus and suppresses ferroptosis, ultimately promoting the proliferation of ISCs.","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"22 1","pages":""},"PeriodicalIF":5.3,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The pharmacological landscape of chronic subdural hematoma: a systematic review and network meta-analysis of randomized and non-randomized controlled studies. 慢性硬膜下血肿的药物治疗:随机和非随机对照研究的系统回顾和网络荟萃分析。
IF 5.3 1区 医学
Burns & Trauma Pub Date : 2024-09-26 DOI: 10.1093/burnst/tkae034
Tao Liu,Zhihao Zhao,Mingqi Liu,Shuo An,Meng Nie,Xuanhui Liu,Yu Qian,Ye Tian,Jianning Zhang,Rongcai Jiang
{"title":"The pharmacological landscape of chronic subdural hematoma: a systematic review and network meta-analysis of randomized and non-randomized controlled studies.","authors":"Tao Liu,Zhihao Zhao,Mingqi Liu,Shuo An,Meng Nie,Xuanhui Liu,Yu Qian,Ye Tian,Jianning Zhang,Rongcai Jiang","doi":"10.1093/burnst/tkae034","DOIUrl":"https://doi.org/10.1093/burnst/tkae034","url":null,"abstract":"BackgroundThere are various treatment modalities for chronic subdural hematoma (CSDH) and there is extensive debate surrounding pharmaceutical interventions. There is no consensus regarding the relative efficacy and safety of multiple treatment modalities. This study aims to investigate this issue and offer potential clinical recommendations.MethodsWe searched PubMed, Web of Science, Embase and the Cochrane Library from January 2000 to May 2023 to identify randomized and nonrandomized controlled studies reporting one or more outcomes associated with the pharmacologic management of CSDH. The primary outcomes of interest included recurrence, favorable prognosis and adverse events, while the secondary outcomes included a reduction in hematoma volume and mortality. Pooled estimates, credible intervals and odds ratios were calculated for all outcomes using a fixed effects model. Confidence in network meta-analysis judgments were employed to stratify the evidential quality. This study was registered with PROSPERO: CRD42023406599.ResultsThe search strategy yielded 656 references; ultimately, 36 studies involving 8082 patients fulfilled our predefined inclusion criteria. The findings suggested that statins + glucocorticoids (GCs) ranked highest for preventing recurrence, improving prognosis and facilitating hematoma absorption. Tranexamic acid ranked second highest for preventing recurrence. Statins were found to be the preferred drug intervention for decreasing mortality and preventing adverse events. Antithrombotic agents ranked lowest in terms of decreasing mortality and improving prognosis.ConclusionsOur findings indicate that statins + GCs may be the most effective treatment modality for preventing recurrence, improving patient prognosis and facilitating hematoma absorption. In terms of reducing mortality and preventing adverse events, statins may be superior to other pharmacological interventions. Routine use of GCs is not suggested for patients with CSDH. Further prospective research is needed to directly compare the efficacy and superiority of various pharmaceutical interventions targeting CSDH to reinforce and validate our findings.","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"38 1","pages":"tkae034"},"PeriodicalIF":5.3,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermo-responsive cascade antimicrobial platform for precise biofilm removal and enhanced wound healing 热响应级联抗菌平台可精确清除生物膜并促进伤口愈合
IF 5.3 1区 医学
Burns & Trauma Pub Date : 2024-09-25 DOI: 10.1093/burnst/tkae038
Ting Du, Jiangli Cao, Zhannuo Zhang, Zehui Xiao, Jingbo Jiao, Zhiyong Song, Xinjun Du, Shuo Wang
{"title":"Thermo-responsive cascade antimicrobial platform for precise biofilm removal and enhanced wound healing","authors":"Ting Du, Jiangli Cao, Zhannuo Zhang, Zehui Xiao, Jingbo Jiao, Zhiyong Song, Xinjun Du, Shuo Wang","doi":"10.1093/burnst/tkae038","DOIUrl":"https://doi.org/10.1093/burnst/tkae038","url":null,"abstract":"Background Bacterial infection, tissue hypoxia and inflammatory response can hinder infected wound repair. This study aimed to develop a multifunctional specific therapeutic photo-activated release nanosystem [HMPB@MB@AuNPs@PMB@HA (HMAPH)] by loading photosensitizer methylene blue (MB) into hollow mesoporous Prussian blue nanostructures and modifying the surface with gold particles, polymyxin B (PMB) and hydrophilic hyaluronic acid. Methods The HMAPH was characterized using transmission electron microscopy, UV–vis, Fourier-transform infrared spectroscopy, X-ray diffraction and X-ray photon spectroscopy. The photothermal performance, iron ion release and free radical generation of the HMAPH were measured under different conditions to investigate its thermo-responsive cascade reaction. The antibacterial ability of HMAPH was investigated using live/dead fluorescence tests. The morphology and membrane integrity of Pseudomonas aeruginosa (P. aeruginosa) were investigated using transmission electron microscopy. The anti-biofilm activity of HMAPH was evaluated using crystal violet and SYBR Green I staining. Finally, we established a mouse model of a skin wound infected by P. aeruginosa to confirm the in vivo effectiveness of HMAPH. We used immunofluorescent staining, hematoxylin–eosin staining, Masson staining and enzyme-linked immunosorbent assay to examine whether HMAPH promoted wound healing and reduced inflammatory damage. Results In this study, hyaluronic acid was decomposed under the action of hyaluronidase. Also, the exposed nanomaterials specifically bound to the outer membrane of P. aeruginosa through PMB to increase the membrane sensitivity to photodynamic treatment. Under dual-light irradiation, a large amount of iron ions released by HMAPH underwent a Fenton reaction with H2O2 in bacteria to generate hydroxyl radicals (•OH), enabling direct killing of cells by hyperthermia. Additionally, the photodynamic activity of MB released by photo-induced activation led to the generation of reactive oxygen species, achieving synergistic and effective inhibition of P. aeruginosa. HMAPH also inhibited biofilm formation and downregulated the expression of virulence factors. In vivo experiments revealed that HMAPH accelerated the healing of P. aeruginosa-infected wounds by promoting angiogenesis and skin regeneration, inhibiting the inflammatory response and promoting M1 to M2 polarization. Conclusions Our study proposed a strategy against bacteria and biofilms through a synergistic photothermal–photodynamic–Fenton reaction, opening up new prospects for combating biofilm-associated infections.","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"35 1","pages":""},"PeriodicalIF":5.3,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142321381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Developing a calculable risk prediction model for sternal wound infection after median sternotomy: a retrospective study 开发胸骨正中切开术后胸骨伤口感染的可计算风险预测模型:一项回顾性研究
IF 5.3 1区 医学
Burns & Trauma Pub Date : 2024-09-14 DOI: 10.1093/burnst/tkae031
Yang Chen, Fei He, Fan Wu, Xiaolong Hu, Wanfu Zhang, Shaohui Li, Hao Zhang, Weixun Duan, Hao Guan
{"title":"Developing a calculable risk prediction model for sternal wound infection after median sternotomy: a retrospective study","authors":"Yang Chen, Fei He, Fan Wu, Xiaolong Hu, Wanfu Zhang, Shaohui Li, Hao Zhang, Weixun Duan, Hao Guan","doi":"10.1093/burnst/tkae031","DOIUrl":"https://doi.org/10.1093/burnst/tkae031","url":null,"abstract":"Background Diagnosing sternal wound infection (SWI) following median sternotomy remains laborious and troublesome, resulting in high mortality rates and great harm to patients. Early intervention and prevention are critical and challenging. This study aimed to develop a simple risk prediction model to identify high-risk populations of SWI and to guide examination programs and intervention strategies. Methods A retrospective analysis was conducted on the clinical data obtained from 6715 patients who underwent median sternotomy between January 2016 and December 2020. The least absolute shrink and selection operator (LASSO) regression method selected the optimal subset of predictors, and multivariate logistic regression helped screen the significant factors. The nomogram model was built based on all significant factors. Area under the curve (AUC), calibration curve and decision curve analysis (DCA) were used to assess the model's performance. Results LASSO regression analysis selected an optimal subset containing nine predictors that were all statistically significant in multivariate logistic regression analysis. Independent risk factors of SWI included female [odds ratio (OR) = 3.405, 95% confidence interval (CI) = 2.535–4.573], chronic obstructive pulmonary disease (OR = 4.679, 95% CI = 2.916–7.508), drinking (OR = 2.025, 95% CI = 1.437–2.855), smoking (OR = 7.059, 95% CI = 5.034–9.898), re-operation (OR = 3.235, 95% CI = 1.087–9.623), heart failure (OR = 1.555, 95% CI = 1.200–2.016) and repeated endotracheal intubation (OR = 1.975, 95% CI = 1.405–2.774). Protective factors included bone wax (OR = 0.674, 95% CI = 0.538–0.843) and chest physiotherapy (OR = 0.446, 95% CI = 0.248–0.802). The AUC of the nomogram was 0.770 (95% CI = 0.745–0.795) with relatively good sensitivity (0.798) and accuracy (0.620), exhibiting moderately good discernment. The model also showed an excellent fitting degree on the calibration curve. Finally, the DCA presented a remarkable net benefit. Conclusions A visual and convenient nomogram-based risk calculator built on disease-associated predictors might help clinicians with the early identification of high-risk patients of SWI and timely intervention.","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"8 1","pages":""},"PeriodicalIF":5.3,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reshaped commensal wound microbiome via topical application of Calvatia gigantea extract contributes to faster diabetic wound healing. 通过局部应用钙华菊提取物重塑共生伤口微生物群有助于加快糖尿病伤口愈合。
IF 6.3 1区 医学
Burns & Trauma Pub Date : 2024-09-02 eCollection Date: 2024-01-01 DOI: 10.1093/burnst/tkae037
Xiaotong Ding, Chenxi Yang, Yue Li, Tangtang He, Yan Xu, Xuxi Cheng, Jinyun Song, Nannan Xue, Wen Min, Weimeng Feng, Hongyu Zhao, Jie Dong, Pei Liu, Yiwei Wang, Jun Chen
{"title":"Reshaped commensal wound microbiome via topical application of <i>Calvatia gigantea</i> extract contributes to faster diabetic wound healing.","authors":"Xiaotong Ding, Chenxi Yang, Yue Li, Tangtang He, Yan Xu, Xuxi Cheng, Jinyun Song, Nannan Xue, Wen Min, Weimeng Feng, Hongyu Zhao, Jie Dong, Pei Liu, Yiwei Wang, Jun Chen","doi":"10.1093/burnst/tkae037","DOIUrl":"10.1093/burnst/tkae037","url":null,"abstract":"<p><strong>Background: </strong><i>Calvatia gigantea</i> (CG) is widely used as a traditional Chinese medicine for wound treatment. In this study, we aimed to determine the effects of CG extract (CGE) on diabetic wound healing and the commensal wound microbiome.</p><p><strong>Method: </strong>A wound model was established using leptin receptor-deficient db/db mice, with untreated mice as the control group and CGE-treated mice as the treatment group. The wound healing rate, inflammation and histology were analyzed. Additionally, wound microbiome was evaluated via 16S ribosomal RNA (rRNA) gene sequencing.</p><p><strong>Results: </strong>CGE significantly accelerated the healing of diabetic ulcer wounds, facilitated re-epithelialization, and downregulated the transcription levels of the inflammatory cytokines, interleukin-1β and tumor necrosis factor-α. Furthermore, CGE treatment positively affected the wound microbiome, promoting diversity of the microbial community and enrichment of <i>Escherichia-Shigella</i> bacteria in the CGE-treated group.</p><p><strong>Conclusions: </strong>Overall, CGE enhanced diabetic wound healing by modulating the wound microbiome and facilitating macrophage polarization during inflammation. These findings suggest modulation of the commensal wound microbiome using medicinal plants as a potential therapeutic strategy for diabetic wounds.</p>","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"12 ","pages":"tkae037"},"PeriodicalIF":6.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11367672/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142119075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
BRD3308 suppresses macrophage oxidative stress and pyroptosis via upregulating acetylation of H3K27 in sepsis-induced acute lung injury. 在脓毒症诱发的急性肺损伤中,BRD3308通过上调H3K27的乙酰化抑制巨噬细胞氧化应激和脓毒症。
IF 6.3 1区 医学
Burns & Trauma Pub Date : 2024-09-02 eCollection Date: 2024-01-01 DOI: 10.1093/burnst/tkae033
Bohao Liu, Ning Li, Yi Liu, Yan Zhang, Limei Qu, Hongfei Cai, Yang Li, Xiaojing Wu, Qing Geng
{"title":"BRD3308 suppresses macrophage oxidative stress and pyroptosis via upregulating acetylation of H3K27 in sepsis-induced acute lung injury.","authors":"Bohao Liu, Ning Li, Yi Liu, Yan Zhang, Limei Qu, Hongfei Cai, Yang Li, Xiaojing Wu, Qing Geng","doi":"10.1093/burnst/tkae033","DOIUrl":"10.1093/burnst/tkae033","url":null,"abstract":"<p><strong>Background: </strong>Sepsis-induced acute lung injury (ALI) leads to severe hypoxemia and respiratory failure, contributing to poor prognosis in septic patients. Endotoxin dissemination triggers oxidative stress and the release of inflammatory cytokines in macrophages, initiating diffuse alveolar damage. The role of epigenetic histone modifications in organ injury is increasingly recognized. The present study aimed to investigate the use of a histone modification inhibitor to alleviate sepsis-induced ALI, revealing a new strategy for improving sepsis patient survival.</p><p><strong>Methods: </strong><i>In vivo</i> models of ALI were established through the intraperitoneal injection of lipopolysaccharide and cecal ligation and puncture surgery. Furthermore, the disease process was simulated <i>in vitro</i> by stimulating Tamm-Horsfall protein-1 (THP-1) cells with lipopolysaccharide. Hematoxylin and eosin staining, blood gas analysis and pulmonary function tests were utilized to assess the extent of lung tissue damage. Western blot analysis, real-time polymerase chain reaction, enzyme-linked immunosorbent assay and immunofluorescence were used to measure the levels and distribution of the indicated indicators within cells and tissues. Reactive oxygen species and autophagic flux alterations were detected using specific probes.</p><p><strong>Results: </strong>BRD3308, which is a inhibitor of histone deacetylase 3, improved lung tissue damage, inflammatory infiltration and edema in ALI by inhibiting Nod-like receptor protein3-mediated pyroptosis in macrophages. By upregulating autophagy, BRD3308 improved the disruption of redox balance in macrophages and reduced the accumulation of reactive oxygen species. Mechanistically, BRD3308 inhibited histone deacetylase 3 activity by binding to it and altering its conformation. Following histone deacetylase 3 inhibition, acetylation of H3K27 was significantly increased. Moreover, the increase in H3K27Ac led to the upregulation of autophagy-related gene 5, a key component of autophagosomes, thereby activating autophagy.</p><p><strong>Conclusions: </strong>BRD3308 inhibits oxidative stress and pyroptosis in macrophages by modulating histone acetylation, thereby preventing sepsis-induced ALI. The present study provides a potential strategy and theoretical basis for the clinical treatment of sepsis-induced ALI.</p>","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"12 ","pages":"tkae033"},"PeriodicalIF":6.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11367671/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142119074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applications of mesenchymal stem cell-exosome components in wound infection healing: new insights. 间充质干细胞外泌体成分在伤口感染愈合中的应用:新见解。
IF 6.3 1区 医学
Burns & Trauma Pub Date : 2024-08-13 eCollection Date: 2024-01-01 DOI: 10.1093/burnst/tkae021
Arshia Fakouri, Zahra-Sadat Razavi, Adil Tawfeeq Mohammed, Abbas Hameed Abdul Hussein, Hamed Afkhami, Mohammad Hosseini Hooshiar
{"title":"Applications of mesenchymal stem cell-exosome components in wound infection healing: new insights.","authors":"Arshia Fakouri, Zahra-Sadat Razavi, Adil Tawfeeq Mohammed, Abbas Hameed Abdul Hussein, Hamed Afkhami, Mohammad Hosseini Hooshiar","doi":"10.1093/burnst/tkae021","DOIUrl":"10.1093/burnst/tkae021","url":null,"abstract":"<p><p>The healing process at a wound is made up of many types of cells, growth factors, the extracellular matrix, nerves and blood vessels all interacting with each other in complex and changing ways. Microbial colonization and proliferation are possible at the place of injury, which makes infection more likely. Because of this, any cut has a chance of getting an infection. Researchers have found that wound infections make patients more upset and cost the healthcare system a lot of money. Surgical site infections happen a lot to people who have recently had surgery. This study shows that such surgical infection is linked to a high rate of illness and death. This is shown by the fact that 25% of patients get serious sepsis and need to be transferred to an intensive care unit. In both animal models and people, mesenchymal stem cells (MSCs) play an active role in all stages of wound healing and have positive effects. Exosomes are one of the main things MSCs release. They have effects that are similar to those of the parent MSCs. Various effector proteins, messenger RNA and microRNAs can be transported by extracellular vesicles to control the activity of target cells. This has a big impact on the healing process. These results suggest that using MSC-exosomes as a new type of cell-free therapy could be a better and safer option than whole cell therapy. This review is mostly about how to use parts of MSC-exosomes to help wound infections heal.</p>","PeriodicalId":9553,"journal":{"name":"Burns & Trauma","volume":"12 ","pages":"tkae021"},"PeriodicalIF":6.3,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11319788/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141975144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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